Section 4.3- Mineral Resources (back to homepage)
Vocabulary
gemstone- a hard colorful mineral that has a brilliant or glassy luster
alloy-a solid mixture of two or more metals ore-a rock that contains metal or economically useful mineral smelting-the process of separating metal from ore Diagrams Saphires can be yellow or blue.
Outline
*The Uses of Minerals*
metal body
window glass of a car
*Gemstones*
hard, colorful
used for jewelry and decoration
used for grinding and polishing
used for mechanical machine
*Metals*
aluminum, iron, copper, silver are all metal
can be stretched into wire, flattened into sheets, or molded without breaking
is in metal filament in a light bulb, or steel grinders
Other Useful Minerals
we use minerals in fertilizers, medicine, and building materials
Table of Contents
Section 4.3- Mineral Resources (back to homepage)
Vocabulary
gemstone- a hard colorful mineral that has a brilliant or glassy luster
alloy-a solid mixture of two or more metals
ore-a rock that contains metal or economically useful mineral
smelting-the process of separating metal from ore
Diagrams
Outline